Since 1977

 Address P.O. Box 219 Batavia, IL 60510 Phone 800-452-1261 Fax 866-452-1436 Email flinn@flinnsci.com

# Center of Gravity

By: The Flinn Staff

Item #: AP7065

Price: \$15.50

In Stock.

In the Center of Gravity Activity Kit for physical science and physics, locate the center of gravity of an irregularly-shaped object. Demonstrate the principles of center of gravity and how it relates to balance and stability.

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## Product Details

Easily show your students how to locate the center of gravity of an irregularly shaped object. Once the center of gravity is determined, insert a pencil inot the proper "center of gravity" hole and spin the object—it will rotate smoothly. Spin the object from any other hole and it will wobble. Use this clear-cut demonstration to introduce the principles of center of gravity and how it relates to balance and stability. Irregular pentagon, hanger handle, string, plumb bob, and complete instructions are provided.

## Specifications

Materials Included in Kit:
Dowel rod with hook, green
Polygon 1, irregular pentagon, with holes, 11" x 12"
Sinker, #6, swivel, ½ oz
String, thin, 2 M long

## Correlation to Next Generation Science Standards (NGSS)†

### Science & Engineering Practices

Developing and using models
Obtaining, evaluation, and communicating information

### Disciplinary Core Ideas

MS-PS2.A: Forces and Motion
MS-PS2.B: Types of Interactions
HS-PS2.A: Forces and Motion
HS-PS2.B: Types of Interactions

### Crosscutting Concepts

Cause and effect
Systems and system models
Stability and change
Structure and function

### Performance Expectations

MS-PS2-4: Construct and present arguments using evidence to support the claim that gravitational interactions are attractive and depend on the masses of interacting objects
HS-PS2-4: Use mathematical representations of Newton’s Law of Gravitation and Coulomb’s Law to describe and predict the gravitational and electrostatic forces between objects.